Vanda plant named &#39;SPCDW0902&#39;

ABSTRACT

A new and distinct  Vanda hybrid  cultivar named ‘SPCDW0902’ is disclosed, characterized by white flowers, durable foliage, overall, compact plant habit and unusual low temperature tolerance. The new variety is a  Vanda,  and is normally used as an ornamental plant.

LATIN NAME OF THE GENUS AND SPECIES

Vanda hybrid

VARIETY DENOMINATION

‘SPCDW0902’

BACKGROUND OF THE INVENTION

The new cultivar was discovered as a chance, naturally occurringmutation of the unpatented proprietary variety Vanda hybrid ‘SPCDW0703.’The inventor, Mr. Thumrong Suphachadiwong, a citizen of Thailand,discovered the new variety as a chance mutation among a population ofplants of ‘SPCDW0703’ at a commercial laboratory in Chonburi, Thailand.The new variety was discovered in 1993 by the inventor.

Asexual reproduction of the new cultivar ‘SPCDW0902’ by tissue culturewas performed at a commercial laboratory in Chonburi, Thailand in 2004.Since that time, multiple generations have been reproduced, and haveshown that the unique features of this cultivar are stable andreproduced true to type through successive generations.

SUMMARY OF THE INVENTION

The cultivar ‘SPCDW0902’ has not been observed under all possibleenvironmental conditions. The phenotype may vary somewhat withvariations in environment such as temperature, day length, and lightintensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘SPCDW0902.’ These characteristics incombination distinguish ‘SPCDW0902’ as a new and distinct Vanda hybridcultivar:

-   1. Compact overall plant.-   2. White flowers.-   3. Foliage with durability to resist breaking.-   4. Unusual low temperature tolerance.

PARENT COMPARISON

Plants of the new cultivar ‘SPCDW0902’ are similar to plants of theparent variety unpatented Vanda hybrid SPCDW0703′ in most horticulturalcharacteristics. However, plants of the new cultivar ‘SPCDW0902’ producewhite colored flowers compared to the blue flowers of the parentvariety.

COMMERCIAL COMPARISON

Plants of the new cultivar ‘SPCDW0902’ are similar to plants of theunpatented commercial variety, Vanda hybrid ‘Blue Magic’ in mosthorticultural characteristics. However, plants of the new cultivar‘SPCDW0902’ produce white flowers, whereas ‘Blue Magic’ produces blueand white colored flowers. Additionally, plants of the new variety aremore compact, with smaller flowers and foliage that is more durable toresist breakage than ‘Blue Magic.’

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph in FIG. 1 illustrates in full color atypical plant of ‘SPCDW0902’ grown in a greenhouse. The pot size is acommercial 11 cm container. The plant shown is approximately 5 yearsold. The photograph was taken using conventional techniques and althoughcolors may appear different from actual colors due to light reflectanceit is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The RoyalHorticultural Society Colour Chart except where general terms ofordinary dictionary significance are used. The following observationsand measurements describe ‘SPCDW0902’ plants grown in a commercialgreenhouse in Honselersdijk, the Netherlands. Temperature ranged from23° C. during the day and 19° C. at night. Light levels were at aminimum of 10,000 lux, including supplemental lighting given duringnaturally dark periods. During the naturally darkest days supplementallighting of 10,000 lux was given for 16 hours per day. Measurements andnumerical values represent averages of typical flowering types. Nochemical or photoperiodic treatments were given.

-   Botanical classification: Vanda hybrid ‘ SPCDW0902.’-   Propagation:-   Type of propagation typically used: tissue culture.-   General propagation: The time needed from for the start of a    mericlone to get the small plants ready for deflasking is    approximately 24 months under a controlled temperature of about 26    degrees Celsius. After that period they have matured roots. Young    tissue culture plantlets start to make roots after approximately 18    months in flasks.-   Root description: Aerial roots only. Roots very fleshy, non-fibrous.    Average length of old roots: 39.8 cm, average diameter of old roots:    2 mm. Average length of young roots: 13.9, average diameter of young    roots: 7 mm. Old roots coloured near RHS Yellow-Green 147B and 147C.    Young roots colored near RHS Greyed-Green 190D; tip near RHS Green    144A.-   Plant:-   Growth habit: Monopodial, upright.-   Height from foliage base to top of foliage:    -   -   Average height from base (plant grown in hanging basket, so            no soil line present) to top of foliage.—29.4 cm.-   Height from to foliage base to top of flowers:    -   -   Average height from base (plant grown in hanging basket, so            no soil line present) to top of foliage.—39.1 cm.-   Plant spread: Average: 38.0 cm at widest, 19.1 cm at narrowest.-   Normal pot size: Hanging basket (8×8 cm square) or 11 cm.-   Growth rate: Moderate.-   Number of Leaves per plant: Average: 22.-   Foliage:-   Leaf:    -   -   Arrangement.—Distichous.        -   Average length.—Approximately 16.9 cm.        -   Average width.—Approximately 2.2 cm.        -   Shape of blade.—Ligulate, carinate, very slightly twisted            lengthways.        -   Aspect.—Only very slightly curved.        -   Apex.—Unequal praemorse.        -   Base.—Sheathing. Sheath length: Average 1.7 cm Sheath width:            Average 1.0 cm. Sheath color: Near RHS Yellow-Green 144D.        -   Margin.—Entire.        -   Texture of top surface.—Smooth, dull.        -   Texture of bottom surface.—Smooth, dull.        -   Color.—Young foliage upper side: Near RHS Yellow-Green 146B            Young foliage under side: Near RHS Yellow-Green 146B Mature            foliage upper side: Near RHS Yellow-Green 146B Mature            foliage under side: Yellow-Green 146A.        -   Venation.—Type: Parallel Venation coloration: Near RHS            Yellow-Green 146B.-   Petiole: No petioles present, leaves sessile.-   Flowering characteristics:-   General description:-   Flower bud:    -   -   Rate of opening.—Approximately 7 days to complete opening            from the stage described here. Length: Approximately 1.7 cm.            Diameter: Approximately 1.3 cm. Shape: Broad ovate, spur            pointing upward Color: Near RHS N114A and N114B. Base and            top (spur) lighter; RHS 145C and 145D.-   Peduncle:    -   -   Length.—Approximately 30.7 cm.        -   Width.—Approximately 0.6 cm.        -   Aspect.—Approximately 30° angle to rosette.        -   Strength.—Strong.        -   Texture.—Smooth, slightly glossy.        -   Color.—Near RHS Green 143C.-   Inflorescence:    -   -   Flowers per stem.—Average: 11.        -   Inflorescence arrangement.—Axially placed raceme.        -   Inflorescence height.—Approximately 18.7 cm.        -   Inflorescence width.—Approximately 15.5 cm.-   Individual flowers:-   Flower type: Zygomorphic (orchidaceous), typical shape for the genus    Vanda.    -   -   Shape.—Zygomorphic, consisting of three sepals and three            petals, one of which is transformed into a labellum (lip).        -   Length.—Approximately 8.7 cm.        -   Width.—Approximately 9.0 cm.        -   Depth.—Approximately 2.1 cm.        -   Fragrance.—No fragrance.        -   Persistent.—No.        -   Quantity of petals.—3 organized: 2 regular petals and 1            labellum (lip), described separately.-   Petals:    -   -   Arrangement.—one lateral petal on each side.        -   Length.—Approximately 4.4 cm.        -   Width.—Approximately 3.6 cm.        -   Shape.—Obovate to short spatulate.        -   Apex.—Rounded.        -   Base.—Cuneate.        -   Margin.—Entire.        -   Texture.—Upper forward surface: Smooth, dull.        -   Texture.—Lower back surface: Smooth, very slightly glossy.        -   Color.—When opening, forward surface: Near White N155A When            opening, back surface: Near 155C, margined Green-White 157B            Fully Opened, forward surface: Near White N155A Fully            Opened, back surface: Between white 155C to 157C Fading,            forward surface: Not fading Fading, back surface: Not            fading.        -   Color venation fully opened, forward surface.—Near White            N155A.        -   Color venation fully opened, back surface.—Between white            155C to 157C.-   Labellum/lip:    -   -   Shape.—Three-lobed, lateral lobes involute, central lobe            bi-lobed, with revolute margins.        -   Length.—Approximately 1.8 cm.        -   Width.—Approximately 1.1 cm.        -   Texture.—Smooth, dull, with 3 callosities.        -   Tip.—Bi-lobed.        -   Base.—Cuneate.        -   Color.—When opening, forward surface: lateral lobes a color            between RHS Yellow-Green 145C and 150C, center near            Greyed-Purple 186C; central lobe (including callosities)            Yellow-Green 144C, base of central lobe Yellow Green N144B            When opening, back surface: Lateral lobes near RHS            Yellow-Green 150C; central lobe near Yellow-Green 145A, base            of central lobe Yellow-Green 145D Fully Opened, forward            surface: Lateral lobes a color between RHS Yellow-Green 145C            and 150C, center Greyed-Purple 186C; central lobe (including            callosities) 144D, base of central lobe 145C. Fully Opened,            back surface: Lateral lobes Yellow-Green 150D and lighter;            central lobe Yellow-Green 145C, base of central lobe 145D            and lighter. Fading, forward surface: Not fading Fading,            back surface: Not fading.        -   Color venation fully opened, forward surface.—No venation            visible on labellum.        -   Color venation fully opened, back surface.—No venation            visible on labellum.        -   Margin.—Entire.-   Spurs:    -   -   Quantity.—Average: 1.        -   Appearance.—Short triangular, in line with central lobe of            labellum.        -   Length.—Approximately 0.9 cm.        -   Width.—Approximately 0.25 cm.        -   Height.—Approximately 0.5 cm.        -   Shape.—Short triangular.        -   Apex.—Obtuse.        -   Base.—Broad cuneate.        -   Margin.—Entire.        -   Texture.—Smooth, slightly glossy.        -   Color.—Near RHS White N155C and N155D, tip near Yellow-Green            145D.-   Sepals:    -   -   Quantity.—Average: 3.        -   Appearance.—One dorsal sepal (pointing upright) and two            lateral sepals.        -   Length.—Approximately 4.4 cm.        -   Width.—Dorsal sepal approximately 3.8 cm. Lateral sepals            approximately 4.3 cm.        -   Shape.—Obovate.        -   Apex.—Rounded.        -   Base.—Cuneate.        -   Margin.—Entire.        -   Texture.—Smooth, dull.        -   Color.—Near RHS N155A.-   Pedicels:    -   -   Length.—Approximately 5.2 cm.        -   Diameter.—Approximately 0.4 cm.        -   Angle.—Approximately 75° angle to peduncle.        -   Strength.—Very strong.        -   Texture.—Smooth, axially angled with 5 “ribs”, axially            twisted (due to resupination), moderately glossy.        -   Color.—Near RHS White N155D, base Green-White 157D.-   Reproductive organs:    -   -   Stamens, style and stigma fused into column.—Yes.        -   Column length.—Approximately 0.5 cm.        -   Column diameter.—Approximately 0.6 cm.        -   Column color.—Near RHS White N155C.        -   Ovary.—Position: Inferior Diameter: Approximately 0.4 cm.            Color: Near RHS White N155D.        -   Pollinia color.—Near RHS Yellow 17B.-   Other characteristics:-   Disease resistance: Neither resistance nor susceptibility to normal    diseases and pests of Vanda have been obvserved.-   Drought tolerance and cold tolerance: Unusually low temperature    tolerance to a minimum 6 degrees Celsius.-   Fruit/seed production: not observed to date.

1. A new and distinct cultivar of Vanda plant named ‘SPCDW0902’ asherein illustrated and described.